Sinclair Wilson was established in 1950 as a two Partner accounting firm based in Warrnambool. Today, we have grown considerably in every aspect of our operations, whilst maintaining a strong focus on delivering first-rate advice and assistance to our clients. We were independently surveyed in 2000 by BRW Magazine as being the third largest accounting practice in regional Australia, and the 49th largest firm overall.
We cover most of Victoria’s Western district and South East South Australia, with offices that are staffed fulltime including Warrnambool, Camperdown, Hamilton and Mount Gambier. Our regional offices allow our clients to access our people in a location that's more convenient to them, these offices include Cobden, Mortlake, Port Fairy, Terang, Timboon.
The number of Partners has grown to 18; the team of staff to 100, including 60 highly committed, skilled and experienced accountants, business advisors, financial planners and specialist technicians.
Our traditional base of accounting and taxation purposes has broadened: business diversification and innovation at Sinclair Wilson has now seen the firm assume market leadership in the delivery of specialist services that include:
Sinclair Wilson’s business philosophy is to provide a confidential, comprehensive and specialist service of a standard expected of any major metropolitan firm, in addition to the benefit that comes from dealing with a regional team of accountants and advisors: Sinclair Wilson clients gain from Sinclair Wilson the personal interest, regional knowledge and ease of access that is virtually impossible to achieve with a firm of city accountants.
In order to achieve this, Sinclair Wilson ensures it invests in quality professional education activities for its team, retention of expert consultants and, most importantly, recruitment of high-calibre staff. Sinclair Wilson is committed not only to its satisfying clients needs but also to ensuring the client’s financial well-being and, in turn, that of Victoria’s Western District and South East South Australia.
Sinclair Wilson has a long and solid history and looks forward to developing and consolidating ongoing client relationships well into the 21st century and retaining its Quality Assured status.

The Sinclair Wilson Partners and Staff in 1993

The Sinclair Wilson Partners and Staff in 2003 at Flagstaff Hill in Warrnambool

The Sinclair Wilson Partners and Staff in 2011 out the front of the new Warrnambool office on Timor Street.